DE3342435A1 - MOLDS WITH IMPROVED PROCESSING PROPERTIES AND MANUFACTURING AGING-RESISTANT PLASTIC FILMS MADE THEREOF - Google Patents

Abstract

1. Moulding materials for the production of ageing-resistant films with improved workability, consisting of mixtures based on 1. polyvinyl chloride grafted with acrylate with a proportion of the acrylate in the graft polymer or mixed graft polymer of 30 - 60 % weight, preferably 35 - 50 % weight, (relative to 100 % weight of acrylate-grafted PVC or acrylate-grafted mixed vinyl chloride polymer) and 2. another polymer or polymer mixture and also optionally with an additional content of 3. fillers, auxiliary processing agents or other known additives, characterized in that the moulding material consists of 90 - 45 % weight, preferably 85 - 50 % weight, of the polyvinyl chloride 1. grafted with acrylate and 10 - 55 % weight, preferably 15 - 50 % weight, of the other polymer or polymer mixture 2., which has a glass transition temperature greater than 70 degrés C, preferably greater than 80 degrés C, and is compatible with the polyvinyl chloride graft polymer, and is a styrene/acrylonitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene/maleic anhydride copolymer, a polymethylmethacrylate (PMMA) and/or a copolymer made from one or more acrylates with acrylonitrile or a mixture of two or more of said polymers or copolymers, and that the polymer mixture 2. contains in addition at least one copolymer with polar groups or monomers with a glass transition temperatur of less than 60 degrés C, preferably less than 50 degrés C.

Description

¹¹ Molding compounds with improved processing properties and aging-resistant plastic films made from them "

The present invention relates to molding compositions with improved processing properties and therefrom Manufactured aging-resistant plastic films, in particular flexible deep-drawing films, improved Aging behavior, consisting of an alloy or an IC us t material dilution on the basis of with Acrylate-grafted polyvinyl chloride with a proportion of the lerylate in the graft polymer of 30 up to 60 G @ w, $ 4 preferably 35 to 50 weight percent (based on to 100 parts by weight of polyvinyl chloride or vinyl chloride copolymer) 5 and another polymer or polymer gel as well as possibly with an additional one Content of fillers, processing aids or other additives known per se.

According to the invention, the molding compositions and the plastic films made therefrom from certain Gewiehtsaiengen the grafted Äerylat polyvinyl chloride and certain amounts by weight consist of another polymer or polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 © c, and

the polyvinyl chloride graft polymer based on vinyl chloride is compatible.

There are already a wide variety of films and composite films, such. B. based on acrylonitrile-butadiene-styrene copolymers with plasticized polyvinyl chloride, laminated with hard and soft PVC, is known. These slides obviously have due to their plasticizer content the disadvantage that a gradual decrease in elasticity, the flexibility at low temperatures and even cracking of the Surface occurs.

Laminates with rigid or hard polymers, for example hard polyvinyl chloride, have the Disadvantage of the high rigidity and low flexibility at low temperatures.

The resistance to heat and light aging is however, in the case of foils, in particular deep-drawn foils, for automotive trim parts a decisive usage property, so that the flexible and at the same time well thermoformable cladding films, especially for dashboards, on the Based on acrylonitrile butadiene styrene, polyvinyl chloride and plasticizing components, as a result of the

Oxidation sensitivity in this mixture existing diene structure in the presence of light and / or thermal energy are relatively sensitive to oxidation and also meet these requirements do not fully comply.

The aim and object of the present invention was therefore to provide films and molding compositions for the production of Foils with impeccable surface on the base or with the use of polyvinyl chloride obtained, the improved forming and relaxation properties have = the foils should preferably be thermoformed foils with improved Aging behavior is well suited and can be used both as a mono-film and as a composite film.

According to the invention it has been found that these aims and objectives molding compositions and from the molding compositions Manufactured plastic films correspond, consisting of an alloy or plastic mixture based on polyvinyl chloride grafted with acrylate, a proportion of the Icrylats in the graft polymer of 30 to 60 wt .- ^, preferably 35 to 50% by weight, (based on 100 parts by weight of polyvinyl chloride) and another polymer or polymer mixture and optionally with an additional content of Fillers, processing aids

or other additives known per se.

According to the invention, the molding compound and the plastic film produced from it consists of 90 to 45% by weight , preferably 85 to 50% by weight, of the acrylate-grafted vinyl chloride polymer and 10 to 55% by weight, preferably 15 to 50% by weight. -ί, of another polymer or polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, and is compatible with the polyvinyl chloride graft polymer on the basis of vinyl chloride.

There are already numerous processes for the production of acrylate-containing vinyl chloride mixtures and -Graft polymers known (cf., inter alia, DE-AS 11 22 706).

It is also known that the polyvinyl chloride / acrylate copolymers and those produced from them Moldings, moldings and the like. Have other properties, in particular a lower one Have glass transition temperature than the vinyl chloride homopolymer or copolymer grafted with acrylate and the molded parts, molded bodies and the like produced therefrom ..

In the context of the present invention, numerous experiments were carried out using acrylic ester-grafted polyvinyl chloride. It was found that the extrusion and K ^ landrierung of molding compositions, which consist of acrylic ester-grafted polyvinyl chloride with an acrylic ester content of 30 to 60 % , usually result in plates, profiles and films with a rough surface. These mixtures also show pronounced elastic behavior during deep-drawing deformation; does this cause a narrow deformation temperature range _? a low degree of deformation and a relatively large change in dimensions of the molded part when exposed to heat, so that acrylic ester-grafted vinyl chloride with this acrylic ester content is only poorly suited for the production of molded parts from foils or sheets «

In the present invention these disadvantages are avoided by using a molding composition which comprises 10 to 55 wt .- #, preferably 15 to 50 wt .-% of another polymer or polymer mixture containing one Glasumwandungstemperatur greater than 70 ⁰ C, preferably greater than 80 ⁰ C, and is compatible with the polyvinyl chloride graft polymer based on vinyl chloride. This will obviously be above the glass transition temperature

/ ft - ^:

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the elasticity is reduced and the viscous flow is improved.

In the present invention, the molding composition or the film made therefrom as other polymers or as a polymer mixture of greater than 70 ⁰ C, preferably greater than 80 ⁰ C, has a glass transition temperature, containing a styrene-acrylonitrile copolymer (SAN), a methyl styrene-aorylnitrile copolymer, a styrene-maleic anhydride copolymer, a polymethyl methaorylate (PMMA) and / or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these polymers or copolymers. These products increase the processing temperatures and thus the thermal stress on the polyvinyl chloride matrix. In addition, the foils produced from the mixtures show a certain stiffening effect as the proportion by weight increases. In order to achieve particularly flexible films containing molding composition or the film made therefrom according to a preferred embodiment, as other polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, in addition, that is, as a component of the polymer mixture at least one copolymer with polar groups or

Monomers having a glass transition temperature of less than 60 ⁰ C, preferably less than 50 ⁰ C, with the proviso that the glass transition temperature of the polymer mixture (of 2.3 and 2.H) is greater than 70 ⁰ C, preferably greater than 80 ⁰ C remains. As copolymers containing polar groups or monomers form according to an advantageous embodiment, olefin copolymers with polar groups, or monomers having a glass transition temperature below 60 ⁰ C, preferably below 50 ⁰ C, for further modification of the iFerarbeitungs- and deformation properties as well as for setting the required mechanical properties used. Ethylene copolymers with polar groups or monomers are preferably used. According to a preferred embodiment there is thus the polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, of at least 2.3 a styrene-acrylonitrile copolymer (SAW), a <£ methylstyrene-acrylonitrile copolymer , a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and / or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these copolymers and at least one olefin copolymer

with polar groups and monomers, preferably an ethylene copolymer with polar groups or monomers.

It has been found that those ethylene copolymers which form a single-phase system with polyvinyl chloride are particularly suitable. Since these ethylene copolymers are not compatible with virtually the aforementioned polymers with a glass transition temperature greater than 70 ⁰ C, it was therefore surprising that the compatibility is not changed with the heat resistance improving polymer by the addition of PVC-acceptable polar polyolefins. This can be seen, for. B. when measuring the torsional modulus according to DIN 53 ^ 45 that no additional dispersion maximum occurs and the temperature of the main dispersion (glass transition temperature) is maintained. The advantageous effect of these additions of PVC-compatible polyolefins on the reduction of deformation stresses can be seen in a greater decrease in the shear modulus with increasing temperature, even in the energy-elastic range, which suggests relaxation processes (viscous flow processes).

The 10 to 55% by weight , preferably 15 to 50% by weight,

of the polymer mixture, the greater than 70 ⁰ C,! preferably greater than 80 ⁰ C, has a glass transition temperature, consist of 3 to 30 parts by weight, preferably 5 to 25 parts by weight, (based on the plastic mixture) of one or several olefin copolymers with polar monomers or polar groups, with a glass transition temperature less than 60 ⁰ C, preferably less than 50 ⁰ C, preferably from one or more ethylene copolymers with polar monomers or polar groups and 3 to 52 parts by weight, preferably 5 to 45 parts by weight (based on the plastic mixture) of a styrene-aerylnitrile copolymer (SAN), a cC-methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and / or a Copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these copolymers.

In the context of the present invention, the term olefin copolymer with polar monomers also includes olefin terpolymers with polar monomers.
25th

Polymers containing polar groups and composed of ethylene and carbon monoxide (CO-Ge

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hold \ 9% by weight?, based on 100% by weight? Polymer). These include Copolymers of ethylene and carbon monoxide with a carbon monoxide content from 9 to 25 wt.?, preferably 10 to 20 wt.? (based on 100% by weight of polymer). Terpolymers of ethylene, carbon monoxide and vinyl acetate with a portion are preferred from 9 to 20 wt.?, preferably 10 to 15 wt.? Carbon monoxide, 19 to 35 weight percent, preferably 20 to 30 wt. Vinyl acetate and 72 to 45 wt.?, Preferably 70 to 55 wt.? Ethylene and / or Copolymers of ethylene-vinyl acetate with a proportion of 50 to 70% by weight? Vinyl acetate, based on the olefin copolymer.

In principle, copolymers of ethylene with acrylic esters are also suitable if the ethylene content less than 50 wt. is, as well as terpolymers of vinyl acetate and higher acrylic esters, preferably Butyl acrylates.

Which additional amounts are used within the specified weight ranges depends on the influencing of the processing and deformation properties also depends on the area of application desired flexibility or hardness.

According to a preferred embodiment, the molding composition or the film made therefrom as a polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, contains at least one styrene-acrylonitrile copolymer (SAN), a methylstyrene-acrylonitrile Copolymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and / or a copolymer of one or more acrylic

'0 esters with acrylonitrile or a mixture of two or more of these copolymers and at least one olefin copolymer with polar groups or Monomers, preferably an ethylene copolymer with polar groups or monomers with a

" ¹ ^ glass transition temperature below 60 ⁰ C.

The foils according to the invention are preferably used to produce molded bodies or molded body parts for motor vehicle interiors, Dashboards of motor vehicles and safety covers, side walls, front and rear wall parts as well as side posts and their safety covers for motor vehicles and aircraft according to known methods, preferably Deep drawing process.

The film is preferably used as a monofilm

puts. According to one embodiment, it consists in Coordination with another film and represents a composite film.

The production takes place in this case so that initially the composite film according to the invention, the one or contains several film webs, according to known methods, for. B. using Slot dies, calendering devices laminated or manufactured in a coextrusion process will. This is followed by deep drawing or compression molding of the composite film in suitable molds.

The molds, moldings or moldings obtained from the film or composite film, preferably in The shape of dashboards, side panels, rear panels, covers or parts thereof are produced, can be used directly or in conjunction with foam sheets and in the form of back-foamed ones Moldings or moldings are used. In the latter case, those from the foil or Molded bodies and / or parts made of composite film directly foamed or for foaming in a foaming mold inserted. The foamable plastics known per se are used for foaming, z. B. polyurethane foam and the like. Used, those

Depending on the type and composition of the plastics, propellants, agents to make them flame retardant, Auxiliaries and additives are added before foaming. 5 The thickness of the foam depends on what is intended Purpose and the external shape of the molded part. It can be between 1 mm to 10 cm, preferably between 3 mm and 5 cm.

Based on 100 parts by weight of plastic, 5 to 30 parts by weight of fillers and 0.5 to 5 parts by weight of processing aids are used such as stabilizers, lubricants, etc. are used.

The beneficial effects of limited viscous flow above the glass transition temperature the reduction in the deformation stress (shrinkage back) is demonstrated by the following examples and comparative tests proven.

Example 1 (with comparative experiment).

A film strip 50 mm long, 20 mm wide and 0.4 mm thick is ^{clamped in a heating cabinet at a temperature of 170 °} C. between two movable clamping devices. After a soaking time of 10 minutes, the sample was stretched by 100% and cooled to 120 ^° C. within 30 minutes, removed from the cabinet and cooled to room temperature within 3 minutes.

The post shrinkage after heat-aging was the stretched sample during 15 min at 120 ⁰ C - the usual test temperature - measured. The following values resulted:

2.S

Recipe (D Comparison Parts by weight (according to the invention d (3) mixture Mixture) 50 a b e 30th A-PVC 70 65 60 55 mod. SAN (2) 30th 30th 30 30 polar 20th Olefin co- polym. 0 5 10 15 12th shrinkage D. 120 ⁰ C (%) 23 20th 14.5 13 50 15 minutes Shore hardness 70 67 64 57

1) graft polymer of 40 wt -.% Acrylester of polyvinyl chloride.

25 2) Ethylene-carbon monoxide-vinyl acetate terpolymer (carbon monoxide content approx. 12 %; vinyl acetate content approx. 28 %).

3) oC -methylstyrene-acrylonitrile copolymer (acrylonitrile content or similar 30%).

The result shows that, surprisingly, the softer films are practically the same in spite of them Glass transition temperature have the lower post-shrinkage.

The additions of the aforementioned polar polyolefins cause a reduction in the processing area Viscosity and a smaller change in viscosity depending on the processing time.

200 g of the comparative mixture, and the mixture 1b according to the invention were each on a Meßwalzwerk with a roll gap of 0.7 mm at 190 ⁰ C under the same conditions rolled and the nip force and its change with time measured.

The mixture according to the invention gave a splitting force of 4.7 N and a closed rotating bead in the Roll gap up to a rolling time of 43 min. Then there was a jump in viscosity and tongue formation in the nip with the result of a rough roll file.

In the comparison mixture, the splitting force was 6.5 N with an uneven bead run with tongue formation and produced a rough roller head during the entire rolling time.

Under suitable conditions, 0.4 mm thick films were calendered from the aforementioned mixtures. While the mixture according to the invention could be calendered to a smooth film without problems, was the comparison mixture rough. The following properties were measured on the films (according to the corresponding DIN standards):

Recipe according to the invention
Mixture (1b) Comparison
mixture Longitudinal tensile strength
(N / mm ² ) across 29
25th 34.5
28.5 Elongation at break longitudinal
(.%) across 195
210 126
165 Shore D hardness 64 70 Vicat temp. (A) ⁰ C 102 113

The deep drawability of these foils was based on a positive wedge shape with a base area of 150 mm χ 200 mm and a height of 120 mm. The following properties were determined:

Recipe according to the invention
Mixture (1b) Comparison
mixture Temperature interval
( ⁰ C) at fault
free deformation 130-190 150-190 Thickness ratio *
Base to the top 1: 0.96 1: 0.79 Shrinkage (%) 15 * 120 °
Deformation temp. 165 ° C Ιί, Ο 9.7

) The thickness ratio is "wall thickness of the inclined edge-tip wall thickness of the inclined edge base" Thermoforming temperature.

at 165 ° C

at - '- ■■'^':

To measure the shrinkage, a test specimen 10 × 10 cm was cut out of the side surface and the change in length was made measured in the longitudinal direction (main direction of deformation). The results show that the addition of the ethylene-carbon monoxide-vinyl acetate terpolymer reduces the viscosity and the processing time was increased. The shrinkback of the longitudinally deformed sample is increased by the addition above and below the Glass transition temperature reduced.

In the deep-drawing test, too, the temperature range is flawless compared to the comparison mixture The deformation is greater, the thickness distribution more favorable and the shrinkage less. This indicates towards the more favorable viscous flow behavior in the production and processing of the foils.

Example 2:
It got a mix of

5k parts by acrylatgepfropftem polyvinyl chloride, (Acrylesteranteil about 40 parts by £ 5, based on 100 wt -.% Acrylgepfropftes PVC),

28 parts by weight of JZ methylstyrene-acrylonitrile copolymer (acrylonitrile content approx. 30%)

and
5

18 parts by weight of an ethylene-vinyl acetate copolymer (vinyl acetate content 60% by weight?) manufactured.

A 0.4 mm thick film was calendered from the mixture under suitable conditions. On this slide the following values were obtained in accordance with the relevant DIN test standards measured:

tensile strenght along 22.7 (N / mm ² ) across 21.0 Elongation at break along 217 (*) across 216 Shore D hardness 56 Vicat temperature (A) ( ⁰ C) 93.

The deep-drawing tests carried out according to Example 1 and measurements of the shrinkage on the molded part gave the following results:

Temperature interval ( ⁰ C)

with perfect deformation 135 - 190

Thickness ratio

Base to tip 1: 0.88

Shrinkage (5S) 15 '120 ⁰ C deformation temp. 165 ^° C 6.7.

These results show a comparable effect due to the addition of the ethylene-vinyl acetate copolymer.

example 3 '

The polymers of Example 1 were mixed in the following proportions:

70 parts by weight of acrylate-grafted polyvinyl chloride

(Acrylic ester content approx. 40% by weight, based on to 100 ί by weight acrylic-grafted

PVC),

15 parts by weight of methylstyrene-acrylonitrile copolymer

sat (acrylonitrile content approx. 30 %) , 25

15 parts by weight of ethylene-carbon monoxide-vinyl acetate terpolymer (carbon monoxide content or the like 12 %, vinyl acetate content approx. 28 %) .

A 0.4 mm thick film was calendered from this mixture under suitable conditions. This resulted the following test values according to DIN test standards:

tensile strenght lSngs 23 (N / mm ² ) across 21 Elongation at break along 220 U) across 270 Shore D hardness 48 Vicat temperature (A)

71

The deep-drawing tests and measurements of the forrateil shrinkage carried out according to Example 1 showed:
20th

Temperature interval ( ⁰ C)

with perfect deformation 130 - 190

Thickness ratio
Base to tip 1: 0.81

-y-

Very shortage (%) 15 '120 ⁰ C
Deformation temp. 165 ^° C 6.8.

These results show that the very soft film has a more favorable deformation behavior and a has less shrinkback than the comparison mixture.

Example 4:

Instead of the eC-methylstyrene-acrylonitrile copolymer, a styrene-acrylonitrile copolymer with an acrylonitrile content of approx. 30 % was used together with the other polymers (1) and (2) of Example 1 in the following mixture:

55 parts by weight of acrylate-grafted polyvinyl chloride

Acrylic ester content approx. MO weight in terms of weight on 100% by weight of acrylic-grafted PVC), 20

30 parts by weight of styrene-acrylonitrile copolymer,

15 parts by weight of ethylene-carbon monoxide-vinyl acetate terpolymer (carbon monoxide content approx. 12 %, vinyl acetate content approx. 28 %) .

The calendered films made from this mixture yielded the following values according to the DIM test standard:

tensile strenght along 25.6 (N / mm ² ) across 25.9 Elongation at break along 275 (*) across 300 Shore D hardness 56 Vicat temperature (A) ( ⁰ C) 95.

The deep-drawing and heat shrinkage tests carried out according to Example 1 gave the following results:

Temperature interval ( ⁰ C)

with perfect deformation 140 - 190

Thickness ratio
Base to tip 1: 0.86

Shrinkage {%) 15 »120 ⁰ C
Deformation temp. 165 ° C 5.3.

This also results in the suitability of the styrene-acrylonitrile mixed polymer.

Example 5:

Instead of the styrene copolymer, a copolymer is used based on a methacrylic acid ester used in the following mixture:

55 parts by weight of acrylic-grafted polyvinyl chloride, based on acrylic ester, approx. 40% by weight to 100 parts by weight of acrylic-grafted PVC), 30 parts by weight of methacrylic acid ester copolymer,

15 parts by weight of ethylene-carbon monoxide- vinyl acetate terpolymer (carbon monoxide content approx. 12%, vinyl acetate content approx. 28 %) 15

and a 0.4 mm thick film is calendered therefrom.

The following test values according to the DIN standard were measured on this film:
20th

tensile strenght along 22nd , 7 (N / mm ² ) across 21 , 3 Elongation at break along 217 (%) across 216 Shore D hardness 48 Vicat temperature (A)

93.

The deep-drawing and heat shrinkage tests carried out according to Example 1 gave the following results.

Temperature interval ( ⁰ C) 130 - 190

Thickness ratio in the case of perfect deformation

Base to tip 1: 0.85

Shrinkage (%) 15 '120 ⁰ C
Deformation temp. 165 ^° C 8.3.

The use of the copolymer based on methacrylic acid ester results in comparison with the o £ methylstyrene-acrylonitrile copolymer, essential softer film, which, however, is even more favorable in terms of deformation behavior than the comparison mixture.

Claims (1)

Claims 1. Molding compounds for the production of aging-resistant Films with improved processing properties, 5 consisting of an alloy or plastic mixture on the basis of 1. Acrylate-grafted polyvinyl chloride with 10 1.1 a proportion of the acrylate in the graft polymer or graft copolymer of 30 - 60 wt .- *, preferably 15 35 - 50 wt .- *, (based on 100 parts by weight of PVC or vinyl chloride copolymer) and 20 2. Another polymer or polymer mixture and possibly with an additional content of 3. fillers, processing aids or other additives known per se, characterized in that the molding compound consists of 1.2 $ 90-15 wt, preferably 85 - 50 weight K ₁
5 of the acrylate-grafted polyvinyl chloride and 2.1 10-55 wt .- ^, preferably 15 - 50 wt. 56, of another polymer or polymer mixture that 2.2 has a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, owns and is compatible with the polyvinyl chloride graft polymer. 2. Molding compositions according to claim 1, characterized in that the other polymer or the polymer mixture than 70 ⁰ C, preferably greater than 80 ⁰ C, has a glass transition temperature of greater, 2.3 a styrene-acrylonitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a Polyraethylmethaerylat (PMMA) and / or a copolymer from © inesa or more Aeryl esters with acrylonitrile or a mixture of two or more of these polymers or copolymers, 3. Molding compositions according to Claims 1 and 2, characterized that the polymer mixture additionally at least 2.4 a copolymer having polar groups, or monomers having a glass transition temperature of less than 60 ⁰ C ₉ preferably less than 50 ⁰ C contains.
15th 4. Molding compositions Naeh one or more of claims 1-3, characterized in that the polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than ⁰ SO C, of at least a styrene-aorylnitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and / or a copolymer of one or more -It- Acrylic esters with acrylonitrile or a mixture of two or more of these copolymers and at least 2.4.1 an olefin copolymer with polar groups and monomers, preferably an ethylene copolymer with polar groups, or monomers having a glass transition temperature of less than 60 ⁰ C, preferably less than 50 ⁰ C, there. 10 5. Molding compositions according to one or more of claims 1-4, characterized in that the 10-55% by weight, preferably 15-50% by weight, of the polymer mixture, which has a glass transition temperature of greater than 70 ⁰ C, preferably
greater than 80 ⁰ C, owns, from 3-30 parts by weight, preferably 5-25. Parts by weight, one or more ¹ Olefineopolymerisate with polar monomers or polar group A lait a glass transition temperature less than 60 ⁰ C, preferably less than 50 ⁰ Cj, preferably of one or more ethylene copolymers with polar monomers or polar groups s, and 3 - 52 GeWo parts, preferably 5-24 parts by weight, of a styrene-aeryl nitrile copolymer (SAN), a methylstyrene-acrylonitrile copolymer, a styrene-maleic anhydride copolymer, a Polymethylraethaorylate (PMMA) and / or a copolymer of one or more acrylic esters old acrylonitrile or a mixture consists of two or more of these copolymers. 6. Foil, in particular flexible deep-drawing foil with improved Aitepungsv @ rhalten ₉ consisting of an alloy or mixture on the basis of 1. Acrylate-grafted polyvinyl chloride with 25 1o1 a proportion of the acrylate in the graft polymer or graft polymer of 30 - 60 by weight, preferably 35 - 50 ί by weight, (based on 100 parts by weight of PVC or vinyl chloride copolymer) and 2. Another polymer or polymer mixture and possibly with an additional content of 3. Fillers, processing aids or other additives known per se, thereby characterized in that the molding compound consists of 1.2 90-45% by weight, preferably 85-50% by weight , of acrylate-grafted polyvinyl chloride 2.1 10-55% by weight , preferably 15-50% by weight, of another polymer or polymer mixture that 2.2 has a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, has -τ and with the polyvinyl chloride graft polymer is compatible " 7. The film of claim S, characterized in that the other polymer or the polymer mixture than 70 ⁰ C, preferably greater than 80 ⁰ C, has a glass transition temperature of greater, 2.3 a styrene-acrylonitrile copolymer (SAN), a methylstyrene-aeronitrile co-polymer, a styrene-maleic anhydride copolymer, a polymethyl methacrylate (PMMA) and / or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these polymers or copolymers is " 8. Film according to claims 6 and 7, characterized in that that the polymer mixture or the alloy additionally at least 2Λ a copolymer with polar groups or monomers with a glass transition temperature of less than 60 ⁰ C, preferably less than SO - ⁰ C contains. BATH ORIGINAL. Q. film according to one or more of claims 6-8, characterized in that the polymer mixture having a glass transition temperature greater than 70 ⁰ C, preferably greater than 80 ⁰ C, of at least 2. "3 a Stvrol-Acrylnltril-Copolymerisat (SAN), a methyl styrene-acrylonitrile copolymer, a Stvrol-maleic acid anhydride codolverizate, a Polvmethylmethacrylat (PMMA) and / or a HoDolverisat from one or more Acrylic esters with acrylonitrile or a mixture of two or more of these copolymers and at least 2.4. ¹ an olefin copolymer and polar groups and monomers, an ethylene-Copolymer'isat with polar GrupDen or monomers having a glass transition temperature of preferably less than 60 ⁰ C, preferably less than 50 ⁰ C, there. 10. Film according to one or more of claims - Q, characterized in that the 10-50 % by weight, preferably 15 - 4 ^ wt .- *, "BAD ORIGINAL of the polymer mixture _s that a glass transition temperature of greater than 70 ⁰ C, preferably greater than 80 ⁰ C, owns, from 3 - 90 parts by weight, preferably 5 - 25 parts by weight, (based on the one or more Kunststoffmisohungi OlefincoDolymerisate with polar monomers or polar groups with a glass transition temperature less than 60 ⁰ C, preferably less than 50 ⁰ G, preferably from one or more Ethvlenoopolymerisaten with polar monomers or polar groups, and 3-52 parts by weight, preferably 5-45 parts by weight, a styrene-acrylonitrile copolymer (SAN), of a methyl styrene-acrylonitrile copolymer, of a styrene-maleic anhydride co-polymer, BATH ORIGINAL a polyvinyl methacrylate (PMMA) and / or a copolymer of one or more acrylic esters with acrylonitrile or a mixture of two or more of these copolymers.